Snapping rolls for huskers and shredders



B. R. BENJAMIN AND G. M. MEfiWIN. SNAPPING ROLLS FOR HUSKERS A'NDSHREDDERS.

APPLICATION FILED FEB. 27. I919.

Patnted June 6,1922.

ll ll II II II?! D0 II II II II II (I I) ll ll El ear 6 v UNITED STATESATENTf QjFF C- snare. BENJAMIN, or OAK PARK, Annenoaen ivil'ivinnw'm, orJinn'v v rr rntinors,

ASSIGNOBS vTo vnwrnmv moria 'I-IARVESTERTGOMBANY, e iconrormrroiviOFANEW JERSEY.

I To all whom it mayooncemt:

Be it known that we, BERT R5 BENJAMIN and GEORGE MERWIN," citizens ofthe United States, and residents, respectively, v of Oak Park, in thecounty of Cook and State of Illinois, and of Berwyn, in the county ofCook and'State'of Illinois, have invented certainnew' and useful Improvements "in" Snapping fRolls for Huskers and Shredders, of, which thefollowing isa fu'll, clear, and exact'spe'eification.

This invention relates to snapping rolls. It is common in corn handlingmachines such as corn pickers and cornhuskers and Shredders,to'usecoacting rolls to snap the ears from the stalks. It is also commonto v use snapping rolls having longitudinal grooves or corrugationstherein. in order to more firmly stalks through the rolls.

fthrough the rolls without being snapped from the stalks, since the earshave in such instances beencarried through the rolls in thelongitudinalgrooves. It has also been "found that pieces of the stalks(and more particularly when the stalks arewet'), have become lodged inthe grooves,'-preve'nting' the proper ceding action. i Anotherdifficulty that has been experienced in the use of suchcorrugated rollsin huskers and shredders, ,is that the cutter,

" which in such machinesis positioned immediately beyond and close tothe rolls, has at times engaged the 1ongitudinal ribs, thereby byproviding means for breaking up the longitudinal grooves into a seriesof comparatively short grooves and by providing v this drawing,

means in the grooves for preventing the engagement of nalribs. i y Y IOne embodiment of the invention is illustrated in the accompanyingdrawing, and in Figure 1 illustrates in elevation a pair of snapping,I'OllS having our invention embodied therein;

, i 'pncg m filed February 2'7, -1919,

grip the stalks, and feed the l/Vhen corrugated rolls are used, in:certain instances the ears of corn have been fed ribs and the end 'wathe cutter with'the longitudi- Serial No. 2793517.

'larged scale showing more clearly the improved construction; and I g 3is a View of the'construction' shown I a in Fig. Qand taken atrightangles-thereto As illustrated in the drawings, the snapping-rolls 10 areprovided'with a seriesof mold, these-rolls being preferably constructedof cast irom-"It should'be under" stood, however,that all of thelongitudinal grooves. may be formed symmetrical if. desired, andjthatthe-particular shape of the grooves .12- has been adopted iljnerely forconvenience, and is notj'vital to the success of the invention but, hilenot essentialjisf embodied-in the-preferred form of my'invention: "1 iThe longitudinal grooves -are, provided I v with-beveled end walls 13"a-nd each of these grooves is provided with v plurality of 'cross ribsorwebs-14 provided with beveled sideslf).

The object in makin the sides of the cross Tl'sbftlie groovesfbew eledis to facilitatethe-molding of thefroll and also to more readily preventany Wet f J Specification of Letters latentll jli atented June 6,1922. 1v v stalks'rrom becoming lodgedfin the grooves. i As shown in F-1gs.'1aniclf 2,fthe crossribs on one groove are staggered with'resp ect Itothe cross ribs in the adjacent groove 'in order to "presenta morecontinuous peripheral -.s'urface,*thereby {preventing the eni I l Igagement of a cutter knife with the grooves of the snapping roll.Thecross ribs are so' spaced in the longitudinal grooves that thedistance between two 'successiveribs is less than thelength of theaverage ear of corn,"

one of the grooves between'two ribs and be-] and this being true it willbe readily seen that there is no possibility of an ear lying in ing fedin this way through the rolls with-- out'beingsnapped from thestalk.* Asshown in Fig. 3,; we preferto mount manner that the longitudinal ribs onone roll the coacting rolls onv'their, shafts in such a coacting roll.This preventsthe grooves of of the'adjacent roll and thereby'rende'rsthe one roll from comingopposite the grooves gatedlongitudinallyextending grooves We have not illustrated in the drawingsany particular mounting for the rolls since any of the common forms ofmountlng may be used, the usual practice belng to provide a springmountingfor the upper'roll wherein the springs are utilized to pressthis roll toward the lower roll.

From the above description it will be seen that we have providedaconstruction of snapping roll having the positive feeding action'of thecorrugated snapping roll, but having the advantage of preventing theears and stalks from becoming lodged in the corrugations and preventingthe ears from bei V ping rolls, each roll having a series ot elon ingfed through the rolls without being snapped from the stalks. By locatingthe cross ribs as shown in-the drawings, that is.

in staggered relation, therollis provided with a more nearly continuousperipheral surface and the liability of engagement oi the cutter withthe longitudinal corrugations is greatly reduced,

\Vhile we have in the above specification shown and described but oneembodiment of our invention,-it is to be understood that we do notintend tobe limited to the exact construction illustrated, but thatvarious modifications may be employed without departing from the spiritand scope of the invention as expressed in the following claims l. Asnapping roll having a series of elongated longitudinally extendinggrooves formed in its periphery and'extending substantially the entirelength of the roll, the end walls of said grooves being beveledoutwardlyfrom the bottom, each of said grooves having a plurality of relativelynarrow cross ribs or webs therein whereby said elongated grooves aresubdivided into a plurality of comparatively short grooves, the outeredges of the ribs being continuous with the cylindrical surface of therolls.

2. A snapping roll havlng a ser es of elonformed in its peripheryparallel to the axis length thereof, each of said grooves having aplurallty of narrowv cross ribstherein having beveled side wwallswherebysaid elongated grooves are/subdivided into a plurality of comparativelyshort grooves having outwardly flaring ends. 3. A snapping'roll having aplurality of longitudinal grooves formed in its periphery, said grooveshaving beveled endlwalls, each of said grooves having a plurality ofclosely spaced crossgribs therein, said ribs having beveled side walls,the outer edges of the end of the roll and extending substantially the rwalls and ribs being substantially at right H angles to the grooves,

4. In a husker, a pair of cooperating snapgated longitudinally extendinggrooves alternating with cylindrical portions or longi-' tudinal ribs,transverse webs dividing each groove into a plurality of relativelyshort grooves, the edges of the transverse fwebs being continuous withthe cylindricalv surface of the longitudinal ribs and arranged instaggered relationlin adjacent grooves, the

grooves in; each roll being opposed to .and-

cooperating with the cylindricalportion of the other roll;

5. A snapping rollshaving a plurality of (5. A snapping rollh avingapluralityof longitudinally extending parallel grooves alternating witha plurality of parallel ribs, webs dividing the groovesinto'a pluralityof relatively short grooves, two opposite grooves being symmetrical withrespect to a diametral plane passingntherethrough and the groovesadjacent thereto being asymmetrical.

In testimony whereofwe affix our signatures. v.

BERT R. BENJAMIN. GEORGE M. MERWIN'.

